compute_with_weights.cc

// Copyright (C) 2008, 2009 EPITA Research and Development Laboratory (LRDE)
//
// This file is part of Olena.
//
// Olena is free software: you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation, version 2 of the License.
//
// Olena is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Olena.  If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, you may use this file as part of a free
// software project without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to produce
// an executable, this file does not by itself cause the resulting
// executable to be covered by the GNU General Public License.  This
// exception does not however invalidate any other reasons why the
// executable file might be covered by the GNU General Public License.

#include <mln/core/site_set/p_set.hh>
#include <mln/core/image/image2d.hh>
#include <mln/accu/center.hh>
#include <mln/set/compute_with_weights.hh>


int main()
{
  using namespace mln;

  {
    bool vals[] = { 1, 1, 0,
                    1, 1, 1,
                    0, 1, 1 };
    image2d<bool> msk = make::image2d(vals);
    accu::center<point2d,point2d> a;
    mln_assertion(set::compute_with_weights(a, msk) == point2d(1,1));
  }

  {
    unsigned vals[] = { 3, 1, 0,
                        1, 5, 1,
                        0, 1, 3 };
    image2d<unsigned> w = make::image2d(vals);
    accu::center<point2d,point2d> a;
    mln_assertion(set::compute_with_weights(a, w) == point2d(1,1));
  }

  {
    unsigned ws[] = { 1, 5, 0,
                      0, 5, 0,
                      0, 5, 1 };
    image2d<unsigned> w = make::image2d(ws);

    unsigned ls[] = { 0, 1, 2,
                      0, 1, 2,
                      0, 1, 2 };
    image2d<unsigned> l = make::image2d(ls);

    accu::center<point2d,point2d> a;
    util::array<point2d> p = set::compute_with_weights(a, w, l, 2);

    for (unsigned l = 0; l <= 2; ++l)
      mln_assertion(p[l] == point2d(l, l));
  }

}